CVE-2025-27511High· 7.2▾ TwilightGeoServer DB2 DataStore Extension has a JNDI Vulnerability via Store Connection
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.6 · likelihood 0.2 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 7.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via GHSA
0.6%
0.6% → 1.1%
Administrator can perform JNDI attack through specially crafted DB2 jdbc url leading to Remote Code Execution (RCE).
If GeoServer has DB2 extension installed, this vulnerability can lead to executing arbitrary code.
Authenticated users can access Vector Data Sources page to creating a new data store through db2 jdbc connection, performing JNDI attack due to unrestricted connection parameters, and then achieve RCE with deserialization of untrusted data.
This issue has been fixed in this release: https://github.com/geoserver/geoserver/releases/tag/2.27.0.
org.geoserver.extension:gs-db2 < 2.27.0Upgrade to a patched release:
org.geoserver.extension:gs-db2 2.27.0Connected by shared product, vendor, weakness, or advisory.
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